The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2003
Filed:
Jun. 23, 2000
Applicant:
Inventors:
Ronald D. Blum, Roanoke, VA (US);
Dwight P. Dustin, Laguna Niguel, CA (US);
Assignee:
E-Vision, LLC, Roanoke, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/06 ;
U.S. Cl.
CPC ...
G02C 7/06 ;
Abstract
An optical lens system that may include a lens with a first focal length and an electro-active region coupled to the lens, where activating the electro-active region alters a portion of the system to a second focal length such that the system has two different focal lengths.